Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
do communications » 10 communications, 14 communications, 2 communications
information bank » information b, information 2, information 1
technologien d » technologien ad, technologien _, technologien 1
d information » nd information, od information, und information
4 developing » 3 developing
developing 4 » developing _, developing a, developing e
debt do » debt gdp, debt how
costs 4 » costs _, costs a, costs 4.2
4 areas » 1 areas, 2 areas, 4 areal

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologien d information bank debt do communications costs 4 developing 4 areas.*.